I am going to Norwich on Tuesday to hear Dr. Hooker, who I hope will boldly promulgate "Darwinianism" in his address. Shall we have the pleasure of seeing you there? I am engaged in negotiations about my book. Hoping you are well and getting on with your next volumes, believe me yours very faithfully, ALFRED R. WALLACE. * * * * * _Freshwater, Isle of Wight. August 19, 1868._ My dear Wallace,--Thanks for your note. I did sometimes think of going to Norwich, for I should have very much liked it, but it has been quite out of the question. We have been here for five weeks for a change, and it has done me some little good; but I have been forced to live the life of a drone, and for a month before leaving home I was unable to do anything and had to stop all work. We return to Down to-morrow. Hooker has been here for two or three days, so that I have had much talk about his Address. I am glad that you will be there. It is real good news that your book is so advanced that you are negotiating about its publication. With respect to dimorphic plants: it is a great puzzle, but I _fancy_ I partially see my way--too long for a letter and too speculative for publication. The groundwork of the acquirement of such peculiar fertility (for what you say about any other distinct individual being, as it would appear, sufficient, is very true) rests on the stamens and pistil having varied first in relative length, _as actually occurs_ irrespective of dimorphism, and the peculiar kind of fertility characteristic of dimorphic and the trimorphic plants having been _secondarily_ acquired. Pangenesis makes _very_ few converts: G.H. Lewes is one. I had become, before my nine weeks' horrid interruption of all work, extremely interested in sexual selection and was making fair progress. In truth, it has vexed me much to find that the further I get on, the more I differ from you about the females being dull-coloured for protection. I can now hardly express myself as strongly even as in the "Origin." This has _much decreased_ the pleasure of my work. In the course of September, if I can get at all stronger, I hope to get Mr. J. Jenner Weir (who has been _wonderfully_ kind in giving me information) to pay me a visit, and I will then write for the chance of your being able to come and, I hope, bring with you Mrs. Wallace. If I could get several of you together, it would be less dull for you, for of late I have found it impossible to talk with any human being for more than half an hour, except on extraordinarily good days.--Believe me, my dear Wallace, ever yours sincerely, CH. DARWIN. * * * * * _9 St. Mark's Crescent. August 30, [1868?]._